2. History of Medicine and Public Health & Dawn of Scientific Medicine MEDICINE IN ANTIQUITY • Medicine was dominated by magical and religious beliefs which were an integral part of ancient cultures and civilization. • Medicine consisted of appeasing God, rituals, sacrifices. • Treatment was by priests ,witch doctors and prayer men. PRIMITIVE MEDICINE • Religion, philosophy and medicine were integral part of civilization. • Religion recognized multiplicity of Gods, both Good and bad evil. • Philosophy accepted the influence inanimate bodies like sun, moon, star, fire on living bodies. Contd. • Thus a co-relation of these with health and disease was established in primitive ages. • One concept was that an evil spirits enter in the body directly and following evil actions. Contd.. • Another concept was that an evil spirit as a messenger of God giving warning in a form of disease. • Some other concept was a human enemy with supernatural powers, send evil spirit to harm others. The soul of dead ancestors influencing his family members were an other belief. •DAWN OF SCIENTIFIC MEDICINE DAWN OF SCIENTIFIC MEDICINE(after 1500 AD) Marked by political, industrial, religious and medical revolution • Political revolution took place in France and America, people claming their rights. • The industrial revolution in the west brought great benefits leading to an improvement in the standard of living among people. • With advancing degrees of civilization, medicine also evolved. DAWN OF SCIENTIFIC MEDICINE(after 1500Contd.. AD) • Paracelcius (1493-1541) who revived medicine. • He was born at the time when Europe was in bed of darkness. Contd. • Fracastorius (1483-1553) an Italian physician said that “the theory of contagion”. He investigated the transfer of infection via minute invisible particles and explain the cause of epidemics. • William Harvey (1628) is famous for his discovery that blood circulates around the human body and it flows in one direction. • Ambroise Pare (1510-1590) a French army surgen did for surgery and earned the title ‘’father of surgery”. SANITARY AWAKENING • Another historic milestone in the evolution of medicine is “Great Sanitary Awakening” – which took place in Mid nineteenth in England and gradually spread to other countries. • Industrial revolution of 18th century sparked off numerous problems like • Creation of Slums, • Overcrowding, • with all its ill effects, • accumulation of filth in cities and town,. Contd. • High Sickness And • Death Rates Specially Among Women And Children., • Infectious Disease Like Tuberculosis, • Industrial And • Social Problems The Mean Age at Death In London Was Reported To Be 44 Years Contd.. Contd. • The great cholera epidemic of 1832 led Edwin Chadwick (1800-1890), a lawyer in England investigate the health of the inhabitants of the large town with a view to improve the conditions under which they lived. • Chadwick’s report on the “The Sanitary Condition of the Labouring Population in Great Britain”. Contd. • Chadwick report focused the attention of the people and government on the urgent need to improve public Health. • Great sanitary awakening which led to the performing • of the public Health Act of 1848 in England • --State has a direct responsibility for the health of the people. RISE OF PUBLIC HEALTH Sanitary awakening lead to the birth of the concept of public health in England around 1840. The Public Health administration in India actually started in 1869 with the appointment of a Sanitary Commission. The first Municipal Act was passed in 1884 in Bengal. John Snow (1848-1854) established the role of polluted drinking water in the spread of cholera. William Budd (1856) outbreak of typhoid fever in the rural north of England Contd. • This early phase of public health (1880--1920) is often called the “disease control phase”. • Efforts were directed entirely towards general cleanliness, garbage and refuse disposal. • Public health made rapid strides in the western world, its progress has been slow in developing countries such as India, where the main health problems continue to be those faced by the western world 100 years ago. Contd. • The establishment of the WHO providing a Health Charter for all people provided a great fillip to the public health movement in different countries. Germ theory of disease • Several theories were advanced from time to time to explain disease causation such as supernatural theory of disease etc, • The breakthrough came in 1860, when the French bacteriologist Louis Pasteur (1822-1895) demonstrate the presence of bacteria in air. • In 1873 Pasteur advanced the “germ theory of disease” after rejecting the theory of “spontaneous generation”. Contd. Germ theory of disease • The germ theory of disease is the currently accepted scientific theory of disease. It states that many diseases are caused by microorganisms. • These small organisms, too small to see without magnification, invade humans, animals, and other living hosts. • Their growth and reproduction within their hosts can cause disease. • 1877 Robert Koch showed that anthrax was caused by bacteria. • The discoveries of Pasture and Koch confirmed the germ theory of disease. Contd. Pasteurization Contd. Contd. Contd. Contd. Contd. Contd.